A pterygium is a triangular tissue growth on the cornea. They are most common in warmer, sunnier climates, and among the 20-40 year old age group. Doctors believe that high exposure to ultraviolet light and dry conditions can increase the probability of the growth.
Symptoms associated with pterygium may include eye irritation, redness, and blurred vision. Because a pterygium grows slowly, it won’t affect your vision unless it is directly over the center of the cornea.
Because a pterygium is visible, most people want it removed for cosmetic reasons. However, even if it is removed, it can grow back. For this reason surgery to remove a pterygium is not recommended unless it affects vision.